KR930010274A - 수압으로 니들링된 초흡수성 복합 재료의 제조방법 - Google Patents

수압으로 니들링된 초흡수성 복합 재료의 제조방법 Download PDF

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KR930010274A
KR930010274A KR1019920020325A KR920020325A KR930010274A KR 930010274 A KR930010274 A KR 930010274A KR 1019920020325 A KR1019920020325 A KR 1019920020325A KR 920020325 A KR920020325 A KR 920020325A KR 930010274 A KR930010274 A KR 930010274A
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superabsorbent
nonwoven
composite material
fibrous web
fibers
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루이스 맥코르맥 앤
로버트 라드반스키 프레드
하트만 에버하트 체리
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마틴 에이취. 마이클
킴벌리-클라크 코포레이션
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/44—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling
    • D04H1/46—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres
    • D04H1/492—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties the fleeces or layers being consolidated by mechanical means, e.g. by rolling by needling or like operations to cause entanglement of fibres by fluid jet
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
    • A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
    • A61L15/42—Use of materials characterised by their function or physical properties
    • A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F13/00—Bandages or dressings; Absorbent pads
    • A61F13/15—Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
    • A61F13/15577—Apparatus or processes for manufacturing
    • A61F13/15617—Making absorbent pads from fibres or pulverulent material with or without treatment of the fibres
    • A61F13/15658—Forming continuous, e.g. composite, fibrous webs, e.g. involving the application of pulverulent material on parts thereof
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/04—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres
    • D04H1/26—Wood pulp
    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
    • D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
    • D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
    • D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
    • D04H1/4374—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece using different kinds of webs, e.g. by layering webs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24273—Structurally defined web or sheet [e.g., overall dimension, etc.] including aperture
    • Y10T428/24322—Composite web or sheet
    • Y10T428/24331—Composite web or sheet including nonapertured component
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/699—Including particulate material other than strand or fiber material

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  • Animal Behavior & Ethology (AREA)
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  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

본 발명은 수압으로 니들링된 섬유상 웹 및 초흡수성 물질을 함유하는 초흡수성 복합 재료의 제조 방법에 관한 것이다. 이 방법은 부직 섬유상 웹을 제공하는 단계, 부직 섬유상 무웹을 수압으로 니들링시켜 그의 액체 분배 특성을 향상시키는 단계 및 건조한 초흡수성 물질로 수압으로 니들링된 섬유상 웹의 적어도 한 표면과 긴밀하게 결합 접촉되도록 도입시키는 단계를 포함한다. 또한, 본 발명은 상기 방법에 의해 제조되는 초흡수성 부직 복합재료에 관한 것이다. 상기 재료의 수압으로 니들링된 섬유상 웹 성분은 펄프 섬유, 합성 섬유, 천연 섬유, 2성분 섬유, 연속 필라멘트 또는 이들의 혼합물을 함유할 수 있다. 초흡수성 복합 재료는 약 500퍼센트를 초과하는 포화능 및 15분 당 약 12cm를 초과하는 위킹 속도를 가진다. 초흡수성 복합 재료는 흡수 제품 또는 흡수 구조물에 액체 처리제로서 사용될 수 있다.

Description

수압으로 니들링된 초흡수성 복합 재료의 제조방법
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제1도는 부직 섬유상 웹 및 초흡수성 물질을 포함하는 수압으로 니들링된 초흡수성 복합 재료의 예시적인 제조공정의 설명도.
제2도는 부직 섬유상 웹의 수압식 니들링을 위한 지지 표면으로서 적합한 예시적인 다층 메시직물의 평면도.
제3도는 예시적인 다층 메시 직물 중 한층을 나타내는 제2도의 선 3-3을 따라 절취한 단면도.
제4도는 예시적인 다층 메시 직물 중 두층을 나타내는 제2도의 선 3-3을 따라 절취한 단면도.
제5도는 예시적인 다층 메시 직물 중 한층의 밑면도.
제6도는 예시적인 다층 메시 직물 중 두층의 밑면도.
제7도는 수압으로 니들링되지 않았고 초흡수제를 함유하지 않은 예시적인 웨트 레이드 펄프 섬유상 웹의 횡단면의 30.5배율 현미경 사진.
제8도는 초흡수제를 함유하지 않은, 수압으로 니들링된 예시적인 펄프 섬유상 웹의 횡단면의 30.5배율 현미경 사진.
제9도는 수압으로 니들링되지 않았고 초흡수제를 함유하지 않은 예시적인 웨트 레이드 펄프 섬유상 웹의 횡단면의 61배율 현미경 사진.
제10도는 초흡수제를 함유하지 않은, 수압으로 니들링된 예시적인 펄프 섬유상 웹의 횡단면의 61배율 현미경 사진.
제11도는 수압으로 니들링되지 않은 웨트 레이드 펄프 섬유상 웹에 침착된 초흡수성 물질을 함유하는 예시적인 복합체의 횡단면의 30.5배율 현미경 사진.
제12도는 수압으로 니들링된 예시적인 초흡수성 복합 재료의 횡단면의 30.5배율 현미경 사진.
제13도는 수압으로 니들링되지 않은 웨트 레이드 펄프 섬유상 웹에 침착된 초흡수성 물질을 함유하는 예시적인 복합체의 횡단면의 61배율 현미경 사진.
제14도는 수압으로 니들링된 예시적인 초흡수성 복합 재료의 횡단면의 61배율 현미경 사진.
제15도는 수압으로 니들링된 초흡수성 복합 재료를 함유하는 예시적인 흡수 구조물의 묘사도.

Claims (28)

  1. 부직 섬유상 웹을 제공하는 단계, 상기 부직웹의 액체 분배 특성을 향상시키기에 충분한 에너지 수준에서 상기 부직웹을 수압으로 니들링시키는 단계, 및 건조한 초흡수성 물질을 상기 수압으로 니들링된 부직 섬유상 웹의 적어도 한 표면과 긴밀하게 결합 접촉되도록 도입시켜서 수압으로 니들링된 초흡수성 복합 재료를 형성하는 단계로 이루어지는, 수압으로 니들링된 초흡수성 복합 재료의 제조방법.
  2. 제1항에 있어서, 건조한 초흡수성 물질을 수압으로 니들링된 부직 섬유상 웹이 젖어 있는 동안에 상기 웹의 적어도 한 표면상에 도입시키고, 이어서 수압으로 니들링된 부직 섬유상 웹과 초흡수성 물질을 건조시켜 초흡수성 복합 재료를 제조하는 방법.
  3. 제1항에 있어서, 건조한 초흡수성 물질을 실질적으로 건조한 수압으로 니들링된 부직 섬유상 웹의 적어도 한 표면상에 침착시키고, 가입하여 상기 초흡수성 물질을 상기 수압으로 니들링된 부직 섬유상 웹에 밀어 넣음으로써 상기 웹과 긴밀하게 결합 접촉되도록 도입시켜 초흡수성 복합 재료를 제조하는 방법.
  4. 제1항에 있어서, 부직 섬유상 웹이 섬유로 이루어진 수성 현탁액을 다공 표면상에 침전시킴으로써 제공되는 방법.
  5. 제1항에 있어서, 부직 섬유상 웹이 펄프 섬유로 이루어지는 시이트를 재수화 시킴으로써 제공되는 방법.
  6. 제1항에 있어서, 부직 섬유상 웹이 약 15 내지 약 35중량%의 고형물 농도에서 수압으로 니들링되는 방법.
  7. 제1항에 있어서 수압식 니들링이 부직웹의 수직 위킹 특성을 수압으로 니들링되지 않은 동일한 부직웹에 비해 약 10% 이상 향상시키는 에너지 수준으로 이루어지는 방법.
  8. 제1항에 있어서, 수압식 니들링이 건조 섬유 453.6g(1파운드)당 약 0.001 내지 약 0.03마력-시간의 에너지 수준으로 이루어지는 방법.
  9. 제4항에 있어서, 다공 표면이 약 20×20 내지 약 200×200의 메시 크기를 갖는 단일 평면 메시, 약 20×20 내지 약 200×200의 유효 메시 크기를 갖는 다층 메시 및 천공 평판으로 이루어지는 군에서 선택되는 방법.
  10. 제4항에 있어서, 상기 섬유가 펄프 섬유, 합성 섬유, 천연 섬유, 2성분 섬유, 연속 필라멘트 및 이들의 혼합물로 이루어지는 군 중에서 선택되는 방법.
  11. 제7항에 있어서, 부직 섬유상 웹이 약 20 내지 약 30중량%의 고형물 농도로 있는 동안에 수압으로 니들링되는 방법.
  12. 제1항에 있어서, 초흡수성 물질이 약 5중량%이상의 초흡수성 물질을 함유하는 흡수성 부직 복합 재료를 제공하는 양으로 수압으로 니들링된 부직 섬유상 웹이 침착되는 방법.
  13. 제12항에 있어서, 초흡수성 물질이 약 10 내지 약 80중량%의 초흡수성 물질을 함유하는 흡수성 부직 복합 재료를 제공하는 양으로 수압으로 니들링된 부직섬유상 웹에 침착되는 방법.
  14. 제12항에 있어서, 초흡수성 입자가 약 30 내지 약 60중량%의 초흡수성 물질을 함유하는 흡수성 부직 복합 재료를 제공하는 양으로 수압으로 니들링된 부직섬유상 웹에 침착되는 방법.
  15. 제1항에 있어서, 건조 단계가 통기식 건조, 적외선 조사, 양키 건조기, 건조통, 마이크로파 및 초음파 에너지로 이루어지는 군 중에서 선택되는 방법을 이용하는 방법.
  16. 제1항에 있어서, 건조 단계후에 기계적 연화 단계를 추가로 포함하는 방법.
  17. 제1항 기재의 방법에 의해 제조되는 수압으로 니들링된 초흡수성 부직 복합 재료.
  18. 제17항에 있어서, 약 10g/㎡을 초과하는 기본 중량을 갖는 초흡수성 부직 복합 재료.
  19. 제17항에 있어서, 약 25 내지 약 400g/㎡의 기본 중량을 갖는 초흡수성 부직 복합 재료.
  20. 제17항에 있어서, 폴리에스테르 섬유, 레이욘 섬유, 면 섬유, 폴리아미드 섬유, 아크릴 섬유 및 폴리올레핀 섬유로 이루어지는 군에서 선택된 스테이플장 섬유 약 5 내지 약 50중량%로 이루어진 초흡수성 부직 복합 재료.
  21. 제19항에 있어서, 약 75 내지 약 150g/㎡의 기본 중량을 갖는 초흡수성 부직 복합 재료.
  22. 제17항에 있어서, 약 500 퍼센트를 초과하는 포화능, 및 15분 당 약 12cm를 초과하는 수직 위킹 속도를 갖는 초흡수성 부직 복합 재료.
  23. 제22항에 있어서, 부직웹이 약 600 내지 약 2500퍼센트의 포화능을 갖는 초흡수성 부직 복합 재료.
  24. 제22항에 있어서, 부직웹이 15분당 약 12 내지 약 15cm의 위킹 속도를 갖는 초흡수성 부직 복합 재료.
  25. 제17항에 있어서, 약 5 내지 약 80중량%의 초흡수성 물질을 함유하는 초흡수성 부직 복합 재료.
  26. 제25항에 있어서, 약 10 내지 약 65중량%의 초흡수성 물질을 함유하는 초흡수성 부직 복합 재료.
  27. 제17항 기재의 초흡수성 부직 복합 재료 1개 이상의 층으로 이루어지는, 흡수 제품의 액체 처리 성분.
  28. 제17항 기재의 초흡수성 부직 복합 재료 1개 이상의 층으로 이루어지는 액체 처리성분을 포함하는 흡수 구조물.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019920020325A 1991-11-01 1992-10-31 수압으로 니들링된 초흡수성 복합 재료의 제조 방법 KR100232508B1 (ko)

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US07/786,437 US5328759A (en) 1991-11-01 1991-11-01 Process for making a hydraulically needled superabsorbent composite material and article thereof

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JP3238766B2 (ja) 2001-12-17
DE69224958T2 (de) 1998-07-30
AU663529B2 (en) 1995-10-12
CA2070266A1 (en) 1993-05-02
EP0540041A1 (en) 1993-05-05
MX9205599A (es) 1993-05-01
US5328759A (en) 1994-07-12
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EP0540041B1 (en) 1998-04-01
DE69224958D1 (de) 1998-05-07
ES2115631T3 (es) 1998-07-01
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TW295565B (ko) 1997-01-11
ZA927462B (en) 1993-04-22
AU2740392A (en) 1993-05-06
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